>> they'd go on vacations with each other. >> reporter: jurgen cowling was their boss. >> when you think of them being around your office, what do you see them doing? >> well, we all get along. you knew they were best friends because they were cutting up on each other. and then they would also tell stories about their sons' baseball, especially during the baseball seasons, 'cause they were best friends, the sons. >> reporter: kay and becky even joined weight watchers together. and the two of them were pretty competitive at the weight watcher thing, huh? >> yes, yes. >> reporter: who's up a pound, who's down a pound? >> yes. every day. >> reporter: and one day in march 2009 began like any other. kay, the little league mom, got up to take derek to school, and becky, the mother of five, left her house a few minutes later to drop off her kids before her workday began. all very routine. until 8:30 a.m., when contractor mitch cozart showed up to do some maintenance work on kay's back door. you're coming around the corner. you lift up the latch gate. and tell me what you see. >> okay. when i walked back into the -- where the back door was, it was -- the glass was busted out. and i immediately knew they had been broken into.